Redirigiendo al acceso original de articulo en 20 segundos...
Inicio  /  Sustainability  /  Vol: 3 Núm: 10 Par: October (2011)  /  Artículo
ARTÍCULO
TITULO

Evolutionary Plant Breeding in Cereals?Into a New Era

Thomas F. Döring    
Samuel Knapp    
Geza Kovacs    
Kevin Murphy and Martin S. Wolfe    

Resumen

In evolutionary plant breeding, crop populations with a high level of genetic diversity are subjected to the forces of natural selection. In a cycle of sowing and re-sowing seed from the plant population year after year, those plants favored under prevailing growing conditions are expected to contribute more seed to the next generation than plants with lower fitness. Thus, evolving crop populations have the capability of adapting to the conditions under which they are grown. Here we review the current state of research in evolutionary plant breeding and concentrate on the ability of evolving plant populations to deal with stressful, variable, and unpredictable environments. This resilience of evolving plant populations is seen as a major advantage under the predicted threats faced by agriculture such as global climate change. We have conducted an analysis of the strengths, weaknesses, opportunities and threats of this breeding approach and suggest how its concept can be broadened and expanded. Given the current legal restrictions for realizing the potential of evolutionary plant breeding, we call for a change in legislation to allow evolving crop populations to enter agricultural practice on a larger scale.

 Artículos similares

       
 
Yasushi Sato, Shinpei Goto, Shoya Teraoka, Katsuya Takagaki, Akinari Takehara, Sakae Sano and Masayuki Sakakibara    
Eleocharis acicularis, an aquatic macrophyte of the Cyperaceae family, has been shown to accumulate multiple heavy metals and has great potential for use in the phytoremediation of contaminated soil and water. To investigate the mechanism of accum... ver más
Revista: Environments

 
Md. Enamul Haque, Richard W. Bell, Amir Kassam and Md. Nur Nobi Mia    
Smallholders in Asia and Africa require low-cost seed drills for minimal soil disturbance while establishing various crops. A seed drill that can be drawn by the widely-available two-wheel tractor (2WT) is an attractive option for mechanization of no-til... ver más
Revista: Environments

 
R.E. Mayer, S. Bofill-Mas, L. Egle, G.H. Reischer, ... A.H. Farnleitner     Pág. 265 - 276
This was a detailed investigation of the seasonal occurrence, dynamics, removal and resistance of human-associated genetic Bacteroidetes faecal markers (GeBaM) compared with ISO-based standard faecal indicator bacteria (SFIB), human-specific viral faecal... ver más
Revista: Water Research

 
Julie C. Dawson, Pierre Rivière, Jean-François Berthellot, Florent Mercier, Patrick de Kochko, Nathalie Galic, Sophie Pin, Estelle Serpolay, Mathieu Thomas, Simon Giuliano and Isabelle Goldringer    
Because organic systems present complex environmental stress, plant breeders may either target very focused regions for different varieties, or create heterogeneous populations which can then evolve specific adaptation through on-farm cultivation and sel... ver más
Revista: Sustainability